AGC-Clamped video amplifier

Details AGC-Clamped video amplifier AGC-Clamped video amplifier

1980-10-06

1982-04-06

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358174, 358176, 358184, H04N 516

Patent

active

043239234

ABSTRACT:
Disclosed is a DC-coupled video amplifier with AGC feedback having a stable operating point. Shifting of sync tip DC level resulting in a loss of synchronization of the video signal is compensated for by means of a feedback loop in the video amplifier thus providing a level video output signal.

REFERENCES:
patent: 3543169 (1970-11-01), Hill
patent: 3569620 (1971-03-01), Baun
patent: 3819859 (1974-06-01), Borsuk et al.
patent: 3970895 (1976-07-01), Willis
patent: 4032973 (1977-06-01), Haynes
patent: 4184176 (1980-01-01), Sahara et al.
patent: 4220931 (1980-09-01), Hines et al.

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